Examples with ShortBufferException javax.crypto.ShortBufferException used on opensource projects

Example 26 with ShortBufferException

use of javax.crypto.ShortBufferException in project android_frameworks_base by crdroidandroid.

the class AndroidKeyStoreCipherSpiBase method engineUpdate.

@Override
protected final int engineUpdate(ByteBuffer input, ByteBuffer output) throws ShortBufferException {
    if (input == null) {
        throw new NullPointerException("input == null");
    }
    if (output == null) {
        throw new NullPointerException("output == null");
    }
    int inputSize = input.remaining();
    byte[] outputArray;
    if (input.hasArray()) {
        outputArray = engineUpdate(input.array(), input.arrayOffset() + input.position(), inputSize);
        input.position(input.position() + inputSize);
    } else {
        byte[] inputArray = new byte[inputSize];
        input.get(inputArray);
        outputArray = engineUpdate(inputArray, 0, inputSize);
    }
    int outputSize = (outputArray != null) ? outputArray.length : 0;
    if (outputSize > 0) {
        int outputBufferAvailable = output.remaining();
        try {
            output.put(outputArray);
        } catch (BufferOverflowException e) {
            throw new ShortBufferException("Output buffer too small. Produced: " + outputSize + ", available: " + outputBufferAvailable);
        }
    }
    return outputSize;
}

Example 27 with ShortBufferException

use of javax.crypto.ShortBufferException in project android_frameworks_base by crdroidandroid.

the class AndroidKeyStoreCipherSpiBase method engineDoFinal.

@Override
protected final int engineDoFinal(ByteBuffer input, ByteBuffer output) throws ShortBufferException, IllegalBlockSizeException, BadPaddingException {
    if (input == null) {
        throw new NullPointerException("input == null");
    }
    if (output == null) {
        throw new NullPointerException("output == null");
    }
    int inputSize = input.remaining();
    byte[] outputArray;
    if (input.hasArray()) {
        outputArray = engineDoFinal(input.array(), input.arrayOffset() + input.position(), inputSize);
        input.position(input.position() + inputSize);
    } else {
        byte[] inputArray = new byte[inputSize];
        input.get(inputArray);
        outputArray = engineDoFinal(inputArray, 0, inputSize);
    }
    int outputSize = (outputArray != null) ? outputArray.length : 0;
    if (outputSize > 0) {
        int outputBufferAvailable = output.remaining();
        try {
            output.put(outputArray);
        } catch (BufferOverflowException e) {
            throw new ShortBufferException("Output buffer too small. Produced: " + outputSize + ", available: " + outputBufferAvailable);
        }
    }
    return outputSize;
}

Example 28 with ShortBufferException

use of javax.crypto.ShortBufferException in project hbase by apache.

the class CryptoAES method wrap.

/**
   * Encrypts input data. The result composes of (msg, padding if needed, mac) and sequence num.
   * @param data the input byte array
   * @param offset the offset in input where the input starts
   * @param len the input length
   * @return the new encrypted byte array.
   * @throws SaslException if error happens
   */
public byte[] wrap(byte[] data, int offset, int len) throws SaslException {
    // mac
    byte[] mac = integrity.getHMAC(data, offset, len);
    integrity.incMySeqNum();
    // encrypt
    byte[] encrypted = new byte[len + 10];
    try {
        int n = encryptor.update(data, offset, len, encrypted, 0);
        encryptor.update(mac, 0, 10, encrypted, n);
    } catch (ShortBufferException sbe) {
        // this should not happen
        throw new SaslException("Error happens during encrypt data", sbe);
    }
    // append seqNum used for mac
    byte[] wrapped = new byte[encrypted.length + 4];
    System.arraycopy(encrypted, 0, wrapped, 0, encrypted.length);
    System.arraycopy(integrity.getSeqNum(), 0, wrapped, encrypted.length, 4);
    return wrapped;
}

Example 29 with ShortBufferException

use of javax.crypto.ShortBufferException in project hbase by apache.

the class CryptoAES method unwrap.

/**
   * Decrypts input data. The input composes of (msg, padding if needed, mac) and sequence num.
   * The result is msg.
   * @param data the input byte array
   * @param offset the offset in input where the input starts
   * @param len the input length
   * @return the new decrypted byte array.
   * @throws SaslException if error happens
   */
public byte[] unwrap(byte[] data, int offset, int len) throws SaslException {
    // get plaintext and seqNum
    byte[] decrypted = new byte[len - 4];
    byte[] peerSeqNum = new byte[4];
    try {
        decryptor.update(data, offset, len - 4, decrypted, 0);
    } catch (ShortBufferException sbe) {
        // this should not happen
        throw new SaslException("Error happens during decrypt data", sbe);
    }
    System.arraycopy(data, offset + decrypted.length, peerSeqNum, 0, 4);
    // get msg and mac
    byte[] msg = new byte[decrypted.length - 10];
    byte[] mac = new byte[10];
    System.arraycopy(decrypted, 0, msg, 0, msg.length);
    System.arraycopy(decrypted, msg.length, mac, 0, 10);
    // check mac integrity and msg sequence
    if (!integrity.compareHMAC(mac, peerSeqNum, msg, 0, msg.length)) {
        throw new SaslException("Unmatched MAC");
    }
    if (!integrity.comparePeerSeqNum(peerSeqNum)) {
        throw new SaslException("Out of order sequencing of messages. Got: " + integrity.byteToInt(peerSeqNum) + " Expected: " + integrity.peerSeqNum);
    }
    integrity.incPeerSeqNum();
    return msg;
}

Example 30 with ShortBufferException

use of javax.crypto.ShortBufferException in project cassandra by apache.

the class EncryptionUtils method decrypt.

/**
     * Decrypt the input data, as well as manage sizing of the {@code outputBuffer}; if the buffer is not big enough,
     * deallocate current, and allocate a large enough buffer.
     *
     * @return the byte buffer that was actaully written to; it may be the {@code outputBuffer} if it had enough capacity,
     * or it may be a new, larger instance. Callers should capture the return buffer (if calling multiple times).
     */
public static ByteBuffer decrypt(ReadableByteChannel channel, ByteBuffer outputBuffer, boolean allowBufferResize, Cipher cipher) throws IOException {
    ByteBuffer metadataBuffer = reusableBuffers.get();
    if (metadataBuffer.capacity() < ENCRYPTED_BLOCK_HEADER_SIZE) {
        metadataBuffer = ByteBufferUtil.ensureCapacity(metadataBuffer, ENCRYPTED_BLOCK_HEADER_SIZE, true);
        reusableBuffers.set(metadataBuffer);
    }
    metadataBuffer.position(0).limit(ENCRYPTED_BLOCK_HEADER_SIZE);
    channel.read(metadataBuffer);
    if (metadataBuffer.remaining() < ENCRYPTED_BLOCK_HEADER_SIZE)
        throw new IllegalStateException("could not read encrypted blocked metadata header");
    int encryptedLength = metadataBuffer.getInt();
    // this is the length of the compressed data
    int plainTextLength = metadataBuffer.getInt();
    outputBuffer = ByteBufferUtil.ensureCapacity(outputBuffer, Math.max(plainTextLength, encryptedLength), allowBufferResize);
    outputBuffer.position(0).limit(encryptedLength);
    channel.read(outputBuffer);
    ByteBuffer dupe = outputBuffer.duplicate();
    dupe.clear();
    try {
        cipher.doFinal(outputBuffer, dupe);
    } catch (ShortBufferException | IllegalBlockSizeException | BadPaddingException e) {
        throw new IOException("failed to decrypt commit log block", e);
    }
    dupe.position(0).limit(plainTextLength);
    return dupe;
}